Method for coating a structure with a uniform foam layer

Details Method for coating a structure with a uniform foam layer Method for coating a structure with a uniform foam layer

1976-07-30

1980-12-16

Lawrence, Evan K.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156344, 264 458, 264 465, 264 466, 264 467, B32B 3118, B32B 520

Patent

active

042395640

ABSTRACT:
A method for forming a layer of very uniform low density foam of uniform thickness on a surface is disclosed. A screen is positioned at a selected distance above a structure surface. The screen is positioned by lowering a tautly stretched screen over a plurality of studs upstanding from the structure surface to a selected height above said surface. A liquid, self-rising foam material is sprayed through the screen onto the structure surface. As the foam rises, it penetrates through the screen, leaving irregular projections above the screen. After the foam cures to at least a self-sustaining state, the screen is stripped away, leaving a uniform foam layer. The foam layer is bonded to the surface as it cures. Since the screen offers very little resistance to the rising foam, the resulting foam layer has a very uniform low density, highly desirable for thermal insulation application.

REFERENCES:
patent: 2770864 (1956-11-01), Weese
patent: 2860069 (1958-11-01), Petrecca
patent: 3082486 (1963-03-01), Khawam et al.
patent: 3086488 (1963-04-01), Johnson
patent: 3172072 (1965-03-01), Willy
patent: 3269882 (1966-08-01), Willy
patent: 3382302 (1968-05-01), Marzocchi
patent: 3493449 (1970-03-01), Krug
patent: 3580763 (1971-05-01), Criner et al.
patent: 3660548 (1972-05-01), Komada et al.
patent: 3776790 (1973-12-01), Harrington et al.

Affiliated with

Also associated with

Rating

Method for coating a structure with a uniform foam layer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for coating a structure with a uniform foam layer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for coating a structure with a uniform foam layer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-606327